The AHT20 humidity sensor is brand new from ASAIR; it measures temperature within a tolerance of ±0.3 °C and relative humidity with ±2% error putting it on the high end of performance, but with relatively low cost!
Use our Arduino library to send I2C commands over the Qwiic bus to trigger measurements and get real-time temperature and humidity data. Just search "SparkFun AHT20" in the Arduino library manager or download the zip file from our Github repo to get the library.
This board is one of our many Qwiic compatible boards! Simply plug and go. No soldering, no figuring out which is SDA or SCL, and no voltage regulation or translation required!
We do not plan to regularly produce SparkX products so get them while they’re hot!
The AHT20 humidity sensor Sensor can also be automatically detected, scanned, configured, and logged using the OpenLog Artemis datalogger system. No programming, soldering, or setup required!
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Did not work with Heltec ESP32 WiFiKit32
I soldered the respective wire to the terminals I a QWIIC connection a requirement?
Got this to track humidity in a basement room and it works great. Measurements take mine an average of 0.047 seconds (plenty fast for my purposes) and it responds very quickly to changes (eg breathing on it). The sample code was straightforward and easy to port to Python on a Pi - thanks Sparkfun!